162 Nor does it occur if the nasal or lateral and the follow- ing stops are not homorganic. gillga.na [qetqafia] ‘to write’ The palatal affricate /ch/, which patterns with the stops, does not voice after the nonhomorganic alveolar /n/. (No examples of palatal /fi/ followed by /ch/ have occurred in the data.) jinchu [hinéu] 'ear' Across morpheme boundaries within a word, voicing may optionally occur if the voiced consonant and the following stop are homorganic, unless the word stress occurs before the voiced consonant, a restriction not applying within single morphemes. Examples: mam. pa [mampa] ‘his mother' mama '‘mother' -pa 3p possessive jan sa.:tan.ti [sa:tanti] ‘we will not say to him' -:tan 43 Future -ti negative final suffix The morpheme combination -n.ka-, composed of -na noun suffix ‘in, on' plus -ka- verbalizer, acts